The fastest open-source AI gateway for LLMs, MCP and agents
The same API as OpenRouter at the provider's list price, with 0% platform fee and no subscription.
Stage
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Pricing model
Freemium
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Pricing
Bifrost OSS is free forever. Bifrost Enterprise has custom pricing; contact sales for a quote.
Prepaid credit from $5 USD (whole dollars), no platform fee. Own provider keys are free with no fee at any volume. First top-up bonus: $5 extra on a first top-up of $5 or more. Up to 20% bonus credit on top-ups through referrals (1% per person referred who pays $20+), posting about plaingateway, or
Key features
Drop-in replacement for any AI SDK with support for OpenAI, Anthropic, and LiteLLM
Model catalog providing access to 1000+ AI models from 8+ providers
Automatic provider failover for 99.99% uptime
Budget management and rate limiting across virtual keys and teams
Built-in OpenTelemetry observability
MCP gateway for centralized tool connections and governance
Real-time guardrails for blocking unsafe model outputs
Virtual key management with independent budgets and access control
Semantic caching to reduce costs and latency
Enterprise clustering with high availability and zero-downtime deployments
0% platform fee with no markup
Bring your own provider keys at no cost
Up to 20% bonus credit on top-ups
Referral program earning 10% for 12 months
Encrypted key storage
No data retention for requests
Compatible with coding agents and IDEs
First top-up bonus of $5
What makes it different
50x faster than LiteLLM with P99 latency of 20 microseconds at 5k requests per second
Zero-touch in-VPC deployments ensure no data leaves your infrastructure
Free and open source with Apache 2.0 license
Works seamlessly with all major LLM frameworks including OpenAI, Anthropic, LangChain, and LiteLLM
Enterprise-grade governance with SSO, RBAC, and audit logs included in Enterprise tier
Free when using your own provider keys with no fee at any volume
Transparent provider list pricing with no hidden costs
Bifrost
plaingateway